Patent
1996-09-17
1998-06-16
Hafiz, Tariq R.
395 61, G06F 1518
Patent
active
057684790
ABSTRACT:
A method for generating a physical integrated circuit layout, using the similarity between a template and the physical layout as a metric. This automated template-driven layout methodology creates a physical integrated circuit layout which approximates the specified template as closely as practicably possible. The similarity of the positioning of circuit elements in a physical layout is improved with regard to the positioning of those same circuit elements in a template. The circuit elements' placement is incrementally improved by attaching a cost to each placement, with a lower cost reflecting a better match between circuit element placement in the physical layout and the template. Fuzzy logic concepts are employed to determine the cost of a given layout.
REFERENCES:
patent: 5308798 (1994-05-01), Brasen et al.
patent: 5579772 (1996-12-01), Kinukawa et al.
Lin, Rung-Bin, et al., Fuzzy Logic Approach To Placement Problem, 29th ACm/IEEE, Design Automation Conference, Paper 9.3, pp. 153-158.
Kong, Seong-Gong, et al., Neural Networks And Fuzzy Systems--A Dynamic Approach To Machine Intelligence, Chapter 10: Fuzzy Image Transform Coding, pp. 363-378, Prentice Hall, 1992.
Pacini, Peter, et al., Neutral Networks And Fuzzy Systems--A Dynamic Approach To Machine Intelligence, Chapter 11: Comparison of Fuzzy and Kalman-Filter Target-Tracking Control Systems, pp. 379-406, Prentice Hall, 1992.
Kirkpatrick, S., et al., Optimization By Simulated Annealing, Science, vol. 220, No. 4598, 13 May 1983, pp. 45-54.
Kang et al., "Fuzzy Logic Approach to VLSI Placement," IEEE Transactions on VLSI Systems, V.2, No. 4, p. 489-501, Dec. 31, 1994.
Mehranfar, "STAT: A Schematic To Artwork Translator For Custom Analog Cells," Custom Integrated Circuits Conf. p. 30.2.1-30.2.3, Dec. 31, 1990.
Gadelkarim George J.
Kao William H.
Vucurevich Ted
Cadence Design Systems Inc.
Hafiz Tariq R.
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